CVE-2020-3588: Cisco Webex Meetings Desktop App Arbitrary Code Execution Vulnerability
First published: Fri Nov 06 2020(Updated: )
A vulnerability in virtualization channel messaging in Cisco Webex Meetings Desktop App for Windows could allow a local attacker to execute arbitrary code on a targeted system. This vulnerability occurs when this app is deployed in a virtual desktop environment and using virtual environment optimization. This vulnerability is due to improper validation of messages processed by the Cisco Webex Meetings Desktop App. A local attacker with limited privileges could exploit this vulnerability by sending malicious messages to the affected software by using the virtualization channel interface. A successful exploit could allow the attacker to modify the underlying operating system configuration, which could allow the attacker to execute arbitrary code with the privileges of a targeted user. Note: This vulnerability can be exploited only when Cisco Webex Meetings Desktop App is in a virtual desktop environment on a hosted virtual desktop (HVD) and is configured to use the Cisco Webex Meetings virtual desktop plug-in for thin clients.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Webex Meetings | <40.6.9 | |
| Cisco Webex Meetings | >=40.8.0<40.8.9 |
Remedy
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-vdi-qQrpBwuJ
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2020-3588.
What is the severity rating of CVE-2020-3588?
CVE-2020-3588 has a severity rating of 7.8 (High).
How can a local attacker exploit this vulnerability?
A local attacker can exploit CVE-2020-3588 to execute arbitrary code on a targeted system.
Which software versions are affected by this vulnerability?
Cisco Webex Meetings Desktop App for Windows versions up to 40.6.9 and versions between 40.8.0 and 40.8.9 are affected.
Is there a fix available for CVE-2020-3588?
Yes, Cisco has released a security advisory with remediation steps for CVE-2020-3588. Please refer to the Cisco Security Advisory for more information.
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